Kyoto, Japan

Toshiyuki Ishikawa

This inventor holds 15 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignee: Rohm Co., Ltd.. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Ishikawa. Retrieved from https://idiyas.com/inventor/toshiyuki-ishikawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 15 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 45(Granted Patents)


Company Filing History:


Years Active: 2011-2025

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15 patents (USPTO):Explore Patents

Title: The Innovations of Toshiyuki Ishikawa

Introduction

Toshiyuki Ishikawa is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 15 patents. His work focuses on advancements that enhance the efficiency and functionality of electronic devices.

Latest Patents

Ishikawa's latest patents include an isolated gate driver and a traction inverter for electric vehicles. The isolated gate driver features a switch connection terminal for an externally connected switching element, a non-volatile memory for storing adjustment data, and a gate driving circuit that operates based on values stored in a register. This design ensures that the gate driving circuit remains disabled until the adjustment data is fully read and stored. Additionally, his semiconductor device patent includes an insulating layer with high and low voltage coils, an electric field shield portion, and a low potential region to enhance safety and performance in high-voltage applications.

Career Highlights

Ishikawa is currently employed at Rohm Co., Ltd., a leading company in semiconductor manufacturing. His innovative designs and patents have positioned him as a key figure in the industry, contributing to the development of cutting-edge technologies.

Collaborations

Throughout his career, Ishikawa has collaborated with talented coworkers such as Daiki Yanagishima and Hirotaka Takihara. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Toshiyuki Ishikawa's contributions to semiconductor technology and his impressive portfolio of patents highlight his role as an influential inventor in the field. His work continues to drive innovation and improve the functionality of electronic devices.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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